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Dispositions and Acquisitions and Purchase of Third-Party Ownership Interests - Additional Information (Detail) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
May 31, 2016 USD ($) Hospital | Jun. 30, 2016 USD ($) Hospital | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) Bed
Acquisitions And Divestitures [Line Items] |  |  |  |
Acquisition of property and businesses |  |  | $ 27,525 | $ 34,500
Minimum |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Ownership interests purchased |  | 26.10% | 26.10% |
Maximum |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Ownership interests purchased |  | 27.50% | 27.50% |
Acute Care Hospital Services | Las Vegas, Nevada |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Number of hospital facilities | Hospital | 6 | 6 |  |
Payments to purchase minority ownership interests | $ 445,000 | $ 445,000 |  |
Purchase price of minority ownership interests | 418,000 | 418,000 | $ 418,000 |
Return of reserve capital to purchase of minority ownership interests | $ 27,000 | $ 27,000 | $ 27,000 |
Acute Care Hospital Services | Minimum | Las Vegas, Nevada |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Ownership interests purchased |  | 26.10% | 26.10% |
Acute Care Hospital Services | Maximum | Las Vegas, Nevada |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Ownership interests purchased |  | 27.50% | 27.50% |
Behavioral Health Services |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Number of beds | Bed |  |  |  | 46

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